input + cleanup

attachment technically works, but not really

merged because oops

Merge commit 'HEAD@{1}'

added loose modules, rendering is stupid

code cleanup

beamin and beamout

fix compilation - update schema - add api to spacetime

Merge remote-tracking branch 'origin/master'

api work

random player position

merged auth and entities, some planet stuff may be slightly broken

converted planets and players to entities

add 0x0c AuthenticateAndBeamOut to the protocol

what changed

modified rotation

update astronomical constants

planetary constants - fix asset builds - orbits

tweak hearty mass - adjust planet scaling

fixed movement again